Inline BigInt::get_bit and byte_at

2 files changed, 9 insertions, 23 deletions

diff --git a/src/lib/math/bigint/bigint.cpp b/src/lib/math/bigint/bigint.cpp
index 90a319c5a..bb4b86f6b 100644
--- a/src/lib/math/bigint/bigint.cpp
+++ b/src/lib/math/bigint/bigint.cpp
@@ -124,27 +124,6 @@ s32bit BigInt::cmp(const BigInt& other, bool check_signs) const
    }
 
 /*
-* Return byte n of this number
-*/
-byte BigInt::byte_at(size_t n) const
-   {
-   const size_t WORD_BYTES = sizeof(word);
-   size_t word_num = n / WORD_BYTES, byte_num = n % WORD_BYTES;
-   if(word_num >= size())
-      return 0;
-   else
-      return get_byte(WORD_BYTES - byte_num - 1, m_reg[word_num]);
-   }
-
-/*
-* Return bit n of this number
-*/
-bool BigInt::get_bit(size_t n) const
-   {
-   return ((word_at(n / MP_WORD_BITS) >> (n % MP_WORD_BITS)) & 1);
-   }
-
-/*
 * Return bits {offset...offset+length}
 */
 u32bit BigInt::get_substring(size_t offset, size_t length) const
diff --git a/src/lib/math/bigint/bigint.h b/src/lib/math/bigint/bigint.h
index 2205c7e83..779f5061d 100644
--- a/src/lib/math/bigint/bigint.h
+++ b/src/lib/math/bigint/bigint.h
@@ -275,7 +275,10 @@ class BOTAN_DLL BigInt
      * @param n the bit offset to test
      * @result true, if the bit at position n is set, false otherwise
      */
-     bool get_bit(size_t n) const;
+     bool get_bit(size_t n) const
+        {
+        return ((word_at(n / MP_WORD_BITS) >> (n % MP_WORD_BITS)) & 1);
+        }
 
      /**
      * Return (a maximum of) 32 bits of the complete value
@@ -297,7 +300,11 @@ class BOTAN_DLL BigInt
      * @param n the offset to get a byte from
      * @result byte at offset n
      */
-     byte byte_at(size_t n) const;
+     byte byte_at(size_t n) const
+        {
+        return get_byte(sizeof(word) - (n % sizeof(word)) - 1,
+                        word_at(n / sizeof(word)));
+        }
 
      /**
      * Return the word at a specified position of the internal register